The transport properties of TlI and the system AgI-TlI were investigated by measuring the electrical conductivity, sigma, and the electronic and ionic transport numbers. A particularly high electronic conductivity was detected in beta-TlI, while the alpha phase showed a predominant anionic contribution, as in TlCl and TlBr. The intermediate compounds, AgTl 2I 3 and AgTlI 2 , are silver ion conductors, but they exhibit low sigma values. A comparison with other polyiodides, with a high silver ion conductivity, is suggested on the basis of the crystal bond ionicity.
Transport processes in TlI and in the AgI-TlI-system / A. Schiraldi, A. Magistris, E. Pezzati. - In: ZEITSCHRIFT FÜR NATURFORSCHUNG. TEIL A, PHYSIK, PHYSIKALISCHE CHEMIE, KOSMOPHYSIK. - ISSN 0340-4811. - 29A:5(1974), pp. 782-785. [10.1515/zna-1974-0520]
Transport processes in TlI and in the AgI-TlI-system
A. SchiraldiPrimo
;
1974
Abstract
The transport properties of TlI and the system AgI-TlI were investigated by measuring the electrical conductivity, sigma, and the electronic and ionic transport numbers. A particularly high electronic conductivity was detected in beta-TlI, while the alpha phase showed a predominant anionic contribution, as in TlCl and TlBr. The intermediate compounds, AgTl 2I 3 and AgTlI 2 , are silver ion conductors, but they exhibit low sigma values. A comparison with other polyiodides, with a high silver ion conductivity, is suggested on the basis of the crystal bond ionicity.
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